Kent County laws regarding encroachments in
streets, yards and courts shall be obeyed, and permissible setback
distances from property lines and public roads shall be met.
Ensure that all necessary local permits have
been obtained and fees paid.
A.
Requirements. To help prevent settling or sagging,
site the home on firm, undisturbed soil or fill compacted to at least
90% of its maximum relative density.
B.
Bearing capacity. Test the bearing capacity of the
soil with a pocket pentrometer or other methods acceptable to Kent
County before designing the foundation. If the soil cannot be tested,
but its type can be identified, use the foundation bearing pressures
shown in Table 3-1[1] as a guide. If you cannot identify the soil, use a bearing
capacity of 1,000 pounds per square foot. Under unusual conditions,
or if the soil appears to be uncompacted fill, consult a local geologist,
engineer or architect.
[1]
Editor's Note: Table 3-1 is included at the end of this chapter.
Removal of all decayable materials, such as
grass, roots, twigs and wood scraps from beneath the home is required
in areas where footings are to be placed to minimize settling of footings
and insect damage. Overhanging branches should be removed from the
immediate vicinity of the home site to prevent windstorm damage.
A.
Purpose. Proper drainage prevents water buildup under
the home, which may cause shifting or settling of the foundation,
dampness in the home, damage to siding and bottom board, buckling
of walls and floors and problems with the operation of doors and windows.
B.
Elimination of depressions. Grade the home site to
permit water to drain from under the home. (See Figure 2-4.[1])
[1]
Editor's Note: Figure 2-4 is included at the end of this chapter.
C.
Drainage structures. Depending on the local landscape,
ditches and culverts may be needed to drain surface runoff. If so,
consult a registered engineer.
D.
Gutters and downspouts. When gutters and downspouts
are installed, direct the runoff away from the home.
A.
Vapor retarder. If the space under the home is to
be enclosed with skirting or other materials, a vapor retarder that
keeps ground moisture out of the home is recommended.
B.
Acceptable types of ground cover. Use a minimum of
six-mil polyethylene sheeting or its equivalent.
C.
Proper installation. Cover the entire area under the
home with the sheeting and overlap it at least 12 inches at all joints.
